Less Pikmin 2, more Pikmin 1
Miyamoto states that he didn't agree with the decision to make Pikmin 2 easier, and wants gamers to feel stress from time to time. The result of the change was a less strategic game, that Miyamoto doesn't want to repeat for Pikmin 3.
"Our main aim in Pikmin 2 was to get rid of any stress as much as possible, so that it would be very user-friendly. Well, I myself couldn't agree with that direction perfectly. That kind of nature of Pikmin 1 was exactly what I wanted to reproduce and I was actually intentionally doing so, so that Pikmin 1 could be a strategic game."
Awesome stuff! The only thing I didn't like about Pikmin 1 were the time limits, as it restricted the freedom of exploration. If Miyamoto can incorporate strategic, difficult gameplay that makes you think, and let us explore the beautiful locales, I'll be happy.
Pikmin 3 [Official Nintendo Magazine UK]